Poison-Distributor, patent, August 19, 1890; (https://texashistory.unt.edu/ark:/67531/metapth172449/m1/1/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Poison-Distributor, patent, August 19, 1890; (https://texashistory.unt.edu/ark:/67531/metapth172449/m1/1/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .